mature_miRNA miRNA* pre-miRNA EST_contig mismatches bulges arm species source_database RFAM_best_hit RFAM_lowest_evalue miRBase_best_hit miRBase_lowest_evalue folding_energy secondary_structure TGCCAAAGGAGAGCTGCCCTG GGGCATGTCTCTATTGGCAGG AGTCATAGGGCATGTCTCTATTGGCAGGTGATATTTCATTTGACTTAGAGGCTCTAGAAATTCACTTGCCAAAGGAGAGCTGCCCTGCGAGT 3 0 3' arm Medicago_truncatula mirbase mir-399 0.00002 mtr-MIR399n 1e-27 -41.1 ..((.(((((((..(((((.(((((((((((.(((((....((((....)).))..)))))))))))))))).)))))..))))))).)).. (-41.10)